CN108429035B - Electrical connector - Google Patents
Electrical connector Download PDFInfo
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- CN108429035B CN108429035B CN201810208023.XA CN201810208023A CN108429035B CN 108429035 B CN108429035 B CN 108429035B CN 201810208023 A CN201810208023 A CN 201810208023A CN 108429035 B CN108429035 B CN 108429035B
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- groove
- electrical connector
- wall surface
- limiting
- terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/7076—Coupling devices for connection between PCB and component, e.g. display
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
- H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
Abstract
The invention discloses a connector, comprising: the insulation body provided with the slot and the first pair of terminals and the second pair of terminals arranged on the insulation body, the slot is provided with the first pair of terminals and the second pair of terminals which are distributed and staggered on the same side in the longitudinal direction, two first welding parts in the first pair of terminals deviate from two first contact parts in the longitudinal direction in opposite directions, two second welding parts in the second pair of terminals deviate from two second contact parts in opposite directions on the longitudinal direction, and the first welding parts of the first pair of terminals and the first welding parts of the second pair of terminals are distributed on two opposite sides of a first main body part of the first pair of terminals in the transverse direction and on two opposite sides of a second main body part of the second pair of terminals. The staggered arrangement of the paired terminals is beneficial to the distribution of the conductive holes corresponding to the paired terminals on the circuit board, is not easy to cause short circuit, and is beneficial to the distribution of various types of terminals, so that the connector has better electrical performance in the transmission process.
Description
Technical Field
The present invention relates to an electrical connector, and more particularly, to an electrical connector electrically connected to a chip module.
Background
The electrical connector of the prior art related to the present invention is used for electrically connecting a chip module to a circuit board, and comprises: the connector comprises an insulating body and a plurality of conductive terminals accommodated in the insulating body.
The conductive terminal is integrally stamped and made of metal materials and comprises a flat-plate-shaped holding part, a bent part bent and extended from one side of the holding part, an elastic part bent and extended upwards from the top end of the bent part, and a welding part bent and extended downwards from the bottom end of the holding part. Wherein, a plurality of barbs are arranged on two opposite sides of the fixing part. The tail end of the elastic part is provided with an arc-shaped contact part which can be connected with the chip module in a guide way. The soldering part is extended from the middle of the bottom of the holding part and has a horizontal arc plate-shaped structure, the bottom of the soldering part can be soldered with the solder ball, and the conductive terminal can be soldered on the circuit board through the solder ball.
The insulating body is made of insulating material, and a plurality of terminal grooves for accommodating the conductive terminals are arranged through the insulating body. The terminal groove comprises an accommodating groove with a rectangular section and a holding groove which is communicated with the accommodating groove and is positioned on one side of the accommodating groove. The conductive terminal is clamped and fixed on the corresponding wall surface of the holding groove through the barb interference of the holding part and is used for holding the conductive terminal in the insulating body, the bent part of the conductive terminal is accommodated in the accommodating groove, and the movable space of the bent part in the accommodating groove is larger.
However, the electrical connector is only interfered and clamped with the corresponding wall surface of the holding groove through the barb on the holding part, so as to hold the conductive terminal in the insulating body, when the chip module presses down the elastic part, because the distance between the contact part and the holding part is larger, and the accommodating groove lacks the limiting function on the bending part, the bending part is easy to shake in the accommodating groove, and further the stable guiding connection between the conductive terminal and the chip module is influenced.
Therefore, there is a need for a new electrical connector to overcome the above problems.
Disclosure of Invention
The invention aims to provide an electric connector which can stably fix a terminal in a body so as to prevent the terminal from shaking in the body and further ensure stable conduction between the terminal and a chip module.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electrical connector for electrically connecting a chip module, comprising: the chip module comprises a body, a first support and a second support, wherein the body is used for upwards bearing the chip module and is provided with a plurality of accommodating holes, each accommodating hole is provided with a first groove and a second groove, and the width of each second groove is smaller than that of each first groove; a plurality of terminals, which are correspondingly accommodated in the plurality of accommodating holes, wherein each terminal comprises: a base part accommodated in the first groove; the extension part is bent and extended from one side of the base part and is accommodated in the second groove; the conducting connection part is arranged at the bottom of the terminal and is used for electrically connecting the circuit board; and the elastic part is formed by bending and extending upwards from the top end of the extending part and is used for abutting against the chip module.
Further, the accommodating hole comprises a first wall surface and a second wall surface which are oppositely arranged, the first wall surface and the second wall surface jointly define the first groove, and the second groove penetrates through the first wall surface and is communicated with the first groove.
Further, the first wall surface and the second wall surface are disposed to be inclined to each other.
Furthermore, two opposite lugs are arranged on the inner wall of the containing hole, and the two lugs define the second groove together.
Furthermore, a guide surface is obliquely arranged at the top of each bump.
Further, the receiving hole has a third wall surface and a fourth wall surface, a protrusion is formed by extending from the third wall surface to the receiving hole, and the protrusion and the fourth wall surface together define the second groove.
Furthermore, the accommodating hole further comprises a fifth wall surface connecting the third wall surface and the fourth wall surface, and the bump is connected with the fifth wall surface.
Furthermore, the body is provided with a groove which is downwards concave from one side of the second groove, the groove is communicated with the second groove, the width of the groove is greater than that of the second groove, and the groove and the first groove are positioned at two opposite sides of the second groove.
Further, the extension portion is received in the recess.
Furthermore, a plurality of clamping parts are arranged on two opposite sides of the base part, the clamping parts are used for being in interference fit with the first grooves, the bottom end of at least one clamping part is provided with a limiting part, and the first groove is provided with a limiting surface which is positioned below the limiting part and used for limiting the terminal to move downwards.
Furthermore, the extending portion has a stopping portion, and the second slot has a stopping surface located below the stopping portion for limiting the downward movement of the terminal.
Further, the base part is provided with a limiting part, the limiting part is positioned below the stopping part, and the first groove is provided with a limiting surface positioned below the limiting part and used for limiting the terminal to move downwards.
Further, the extension portion pierces to form a spur that is in interference fit with the second slot.
Further, from the top of basal portion upwards extends and forms a material portion of being connected with the material area, the body is from one side of first groove is upwards protruding to be equipped with a sand grip, the sand grip is close to one side of material portion has an inclined plane even, the top of material portion even is higher than the lower extreme on inclined plane but is less than the upper end on inclined plane even.
Furthermore, the body is provided with a supporting block protruding upwards from the other side of the first groove, the top surface of the supporting block is higher than that of the protruding strip, and the supporting block is used for upwards bearing the chip module.
Furthermore, the conducting part extends downwards from the bottom end of the base part, and the conducting part and the circuit board are welded through a welding flux.
Further, the vertical center line of the guide part and the vertical center line of the base part are arranged in a deviated mode in the horizontal direction.
Further, a vertical centerline of the lead-in portion is offset with respect to a vertical centerline of the base portion toward a location proximate a connection of the base portion and the extension portion.
Furthermore, the guiding connection part is formed by vertically extending downwards from the bottom end of the base part, a fixing block protruding downwards is arranged on one side of each accommodating hole of the body, and the guiding connection part and the fixing block are clamped on two opposite sides of a welding flux.
Further, the guiding part comprises a first part formed by extending downwards from the bottom end of the base part, a second part formed by extending horizontally from the first part, and a protruding part formed by extending horizontally from the second part, wherein the protruding part extends to the position right below the extending part, and the bottom surface of the protruding part is welded with a solder.
Compared with the prior art, the electric connector has the following beneficial effects:
the base portion is contained in the first groove, the extension portion is contained in the second groove, the width of the second groove is smaller than that of the first groove, the limiting effect of the second groove on the extension portion is guaranteed, the distance from the abutting position of the terminal and the chip module to the limiting position of the terminal in the containing hole is further reduced, when the chip module presses the elastic portion downwards, the fact that the extension portion shakes in the second groove can be effectively reduced, and stable guiding connection between the terminal and the chip module is further guaranteed.
[ description of the drawings ]
Fig. 1 is a perspective view of an electrical connector according to a first embodiment of the present invention;
FIG. 2 is a perspective view of the electrical connector of FIG. 1 inverted 180;
fig. 3 is a top view of the electrical connector of fig. 1;
FIG. 4 is an enlarged view of a portion a of FIG. 3;
fig. 5 is a cross-sectional view of the electrical connector of fig. 3 taken along the direction a-a;
FIG. 6 is a cross-sectional view of the electrical connector of FIG. 3 taken along the direction B-B;
FIG. 7 is a plan view of the electrical connector of FIG. 6 after the chip module has been depressed;
fig. 8 is a perspective view of an electrical connector according to a second embodiment of the present invention;
fig. 9 is a perspective view of the electrical connector of fig. 8 after the terminals are assembled to the body;
fig. 10 is a front view of the electrical connector of fig. 9;
fig. 11 is a top view of the electrical connector of fig. 9;
fig. 12 is an enlarged view of a portion b of fig. 11.
Detailed description of the embodiments reference is made to the accompanying drawings in which:
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| Chip module 4 | Circuit board 5 | Material belt 6 | Widths W1, W2, W3 |
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[ detailed description ] embodiments
For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.
As shown in fig. 1 to 7, an electrical connector 100 according to a first embodiment of the present invention is used for electrically connecting a chip module 4 to a circuit board 5, and includes a body 1 for upwardly supporting the chip module 4, and a plurality of terminals 2 accommodated in the body 1.
As shown in fig. 1 and fig. 3, the main body 1 is made of an insulating material, the main body 1 has an upper surface 11 and a lower surface 12 which are opposite to each other, the main body 1 is provided with a plurality of receiving holes 13 penetrating through the upper surface 11 and the lower surface 12, the plurality of receiving holes 13 are arranged in a plurality of rows, and two adjacent rows of the receiving holes 13 are arranged in a staggered manner.
As shown in fig. 1 and 4, each of the receiving holes 13 has a first slot 14 and a second slot 15, and the width W2 of the second slot 15 is smaller than the width W1 of the first slot 14.
The receiving hole 13 includes a first wall 131 and a second wall 132 disposed opposite to each other, the first wall 131 and the second wall 132 are disposed obliquely to each other and define the first groove 14, and a distance between the first wall 131 and the second wall 132 is defined as a width W1 of the first groove 14.
A portion of the first groove 14 does not penetrate through the lower surface 12 to form a limiting surface 141, and the limiting surface 141 connects the first wall surface 131 and the second wall surface 132.
The inner wall of the receiving hole 13 is provided with two opposite protrusions 133, the two protrusions 133 extend close to each other and together define the second groove 15, the second groove 15 penetrates through the first wall surface 131 and is communicated with the first groove 14, inner surfaces of the two protrusions 133 are parallel to each other, a distance between the inner surfaces of the two protrusions 133 is defined as a width W2 of the second groove 15, and a guide surface 1331 is obliquely arranged at the top of each protrusion 133.
The second slot 15 does not penetrate the lower surface 12 to form a stop surface 151, the stop surface 151 is located above the limiting surface 141 (refer to fig. 6), and the stop surface 151 extends to the connection position of the first slot 14 and the second slot 15.
A plurality of grooves 16 are recessed downward from the upper surface 11, each groove 16 is correspondingly communicated with each second groove 15, the width W3 of each groove 16 is larger than the width W2 of each second groove 15, the grooves 16 and the first grooves 14 are positioned at two opposite sides of the second grooves 15, and the strength of the mold pins can be enhanced when the mold pins are used for molding the second grooves 15.
As shown in fig. 4 and 5, a plurality of protruding strips 17 extend upward from the upper surface 11, one protruding strip 17 is correspondingly disposed on one side of each first groove 14, and an inclined surface 171 is disposed on one side of each protruding strip 17 close to the first groove 14.
A plurality of supporting blocks 18 extend upwards from the upper surface 11, one supporting block 18 is correspondingly arranged on the other side of each first groove 14, the top surface of each supporting block 18 is higher than the top surface of each protruding strip 17, and the supporting blocks 18 are used for upwards bearing the chip modules 4.
As shown in fig. 1 and fig. 2, a holding block 19 protruding downward is disposed on one side of each receiving hole 13 of the body 1.
As shown in fig. 1, the terminals 2 are made of metal sheet, a plurality of the terminals 2 are correspondingly accommodated in the accommodating holes 13, and each of the terminals 2 includes a base portion 21, an extending portion 22, a guiding portion 23, a connecting portion 24, and an elastic portion 25.
As shown in fig. 1, 4 and 6, the base portion 21 is shaped like a flat plate, the base portion 21 is accommodated in the first groove 14, a bottom end of the base portion 21 is provided with a limiting portion 211, and the limiting surface 141 is located below the limiting portion 211 to limit downward movement of the terminal 2.
The extending portion 22 is bent and extended from one side of the base portion 21, the extending portion 22 is guided by the guiding surface 1331 and is further received in the second slot 15, the extending portion 22 is partially received in the groove 16, the extending portion 22 is pierced to form a protruding spike 221, the protruding spike 221 is in interference fit with one of the protrusions 133 in the receiving hole 13 to fix the terminal 2 in the receiving hole 13, the bottom end of the extending portion 22 has a stopping portion 222, the stopping portion 222 is located above the limiting portion 211, and the stopping surface 151 is located below the stopping portion 222 to limit the terminal 2 from moving downward.
As shown in fig. 1 and 2, the guiding portion 23 extends vertically downward from the bottom end of the base portion 21, the guiding portion 23 is soldered to the circuit board 5 by a solder 3 (in other embodiments, the guiding portion 23 may also elastically abut against the circuit board 5), the guiding portion 23 extends downward beyond the first slot 14, the guiding portion 23 and the holding block 19 are clamped on opposite sides of the solder 3, a vertical center line L1 of the guiding portion 23 is offset from a vertical center line L2 of the base portion 21 in the horizontal direction, and a vertical center line L1 of the guiding portion 23 is offset from a vertical center line L2 of the base portion 21 toward a connection portion between the base portion 21 and the extending portion 22.
As shown in fig. 1 and 5, the connecting portion 24 is formed by extending vertically and upwardly from the top end of the base portion 21, the connecting portion 24 is configured to be connected to the material tape 6, the connecting portion 24 extends upwardly beyond the first groove 14, and the top end of the connecting portion 24 is higher than the lower end of the inclined surface 171 but lower than the upper end of the inclined surface 171, so as to facilitate breaking the material tape 6.
The elastic portion 25 is formed by bending and extending upward from the top end of the extending portion 22, the elastic portion 25 extends upward beyond the second slot 15 (see fig. 6 for assistance), and a contact portion 251 is disposed at the end of the elastic portion 25, and the contact portion 251 is arc-shaped and is used for abutting against the chip module 4 (see fig. 7 for assistance).
As shown in fig. 1, 5 and 6, during assembly, the terminal 2 is mounted to the receiving hole 13 from top to bottom, such that the base portion 21 is received in the first groove 14, the extending portion 22 is received in the second groove 15 until the limiting portion 211 abuts against the limiting surface 141, the stopping portion 222 abuts against the stopping surface 151, the protruding spine 221 and the protruding spine 133 are in interference fit, and the guiding portion 23 extends downward beyond the first groove 14 and is clamped to opposite sides of the solder 3 with the retaining block 19.
As shown in fig. 6 and 7, in use, the electrical connector 100 is first placed on the circuit board 5, the electrical connector 100 is soldered and fixed on the circuit board 5 by the solder 3, the chip module 4 is then mounted on the electrical connector 100, and then a downward force is applied to the chip module 4, so that the chip module 4 abuts against the terminals 2 downward, and the extension portion 22 is held in the second groove 15 to serve as a fulcrum for deformation of the elastic portion 25 until the supporting block 18 supports the chip module 4 upward.
As shown in fig. 8 to 12, an electrical connector 100 according to a second embodiment of the present invention is shown, in the drawings of the embodiment, the same reference numerals as those in the first embodiment are used, and the description of the embodiment is not repeated, and the difference from the electrical connector 100 according to the first embodiment is mainly that:
as shown in fig. 8, 11 and 12, the first wall 131 and the second wall 132 are disposed in parallel and define the first groove 14, and a distance between the first wall 131 and the second wall 132 is defined as a width W1 of the first groove 14.
The receiving hole 13 has a third wall 134 and a fourth wall 135 that are opposite to each other, and a fifth wall 136 that connects the third wall 134 and the fourth wall 135, the protrusion 133 is formed by extending from the third wall 134 toward the receiving hole 13, the protrusion 133 is connected to the fifth wall 136, the protrusion 133 and the fourth wall 135 together define the second slot 15, the second slot 15 penetrates through the lower surface 12, and a distance between the protrusion 133 and the fourth wall 135 is defined as a width W2 of the second slot 15.
As shown in fig. 8, 9 and 10, a plurality of engaging portions 212 are disposed on two opposite sides of the base portion 21, the engaging portions 212 are located below the extending portion 22, the engaging portions 212 are in interference fit with the first grooves 14 to fix the terminals 2 in the receiving holes 13, and the bottom end of at least one of the engaging portions 212 has the limiting portion 211 to limit the downward movement of the terminals 2.
In this embodiment, two engaging portions 212 are disposed on opposite sides of the base portion 21, and the limiting portion 211 is disposed at a bottom end of the lower engaging portion 212 (in other embodiments, the limiting portion 211 may be disposed at a bottom end of the upper engaging portion 212, or the limiting portions 211 may be disposed at bottom ends of all the engaging portions 212).
The guiding part 23 includes a first part 231 vertically extending downward from the bottom end of the base 21, a second part 232 horizontally extending from the first part 231, and a protruding part 233 horizontally extending from the second part 232, the protruding part 233 extends to the position right below the extending part 22, the bottom surface of the second part 232 and the bottom surface of the protruding part 233 are both welded with the solder 3, the welding area of the guiding part 23 and the solder 3 is increased, and the stable guiding connection between the electrical connector 100 and the circuit board 5 is ensured.
In summary, the electrical connector of the present invention has the following advantages:
(1) the base portion 21 is accommodated in the first groove 14, the extension portion 22 is accommodated in the second groove 15, and the width W2 of the second groove 15 is smaller than the width W1 of the first groove 14, so that the limit effect of the second groove 15 on the extension portion 22 is ensured, the distance from the abutting position of the terminal 2 and the chip module 4 to the limit position of the terminal 2 in the accommodating hole 13 is further reduced, when the chip module 4 presses down the elastic portion 25, the shake of the extension portion 22 in the second groove 15 can be effectively reduced, and the stable guiding connection between the terminal 2 and the chip module 4 is further ensured.
(2) The engaging portion 212 is in interference fit with the first groove 14, and the limiting surface 141 is located below the limiting portion 211 to fix the base portion 21 in the first groove 14, so that the base portion 21 can be effectively prevented from shaking in the first groove 14, and stable connection between the terminal 2 and the chip module 4 is further ensured.
(3) The vertical center line L1 of the guiding portion 23 is offset from the vertical center line L2 of the base portion 21 toward the connection between the base portion 21 and the extending portion 22, so that the guiding portion 23 is close to the center of the first slot 14, thereby preventing the guiding portion 23 from interfering with the first slot 14 and preventing the terminal 2 from being correctly mounted in the receiving hole 13.
(4) The extension portion 22 is pierced to form a protruding spike 221, and the protruding spike 221 is in interference fit with the second groove 15 to fix the extension portion 22 in the second groove 15, so that the extension portion 22 is effectively prevented from shaking in the second groove 15, and stable conduction between the terminal 2 and the chip module 4 is further ensured.
(5) The protrusion 133 extends from the third wall 134 toward the receiving hole 13 and is connected to the fifth wall 136, so that the strength of the protrusion 133 is enhanced, and the limit effect of the second groove 15 on the extending portion 22 is further ensured.
(6) The second groove 15 has a stop surface 151 located below the stop portion 222, and the first groove 14 has a limiting surface 141 located below the limiting portion 211, so as to ensure that the terminal 2 is more balanced in the receiving hole 13, and further prevent the terminal 2 from shaking in the receiving hole 13.
The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.
Claims (20)
1. An electrical connector for electrically connecting a chip module to a circuit board, comprising:
the chip module comprises a body, a first support and a second support, wherein the body is used for upwards bearing the chip module and is provided with a plurality of accommodating holes, and each accommodating hole is provided with a first groove and a second groove;
a plurality of terminals, which are correspondingly accommodated in the plurality of accommodating holes, wherein each terminal comprises: a base part accommodated in the first groove; an extension portion, which is bent and extended from one side of the base portion and is accommodated in the second groove, wherein the width of the second groove along the plate thickness direction of the extension portion is smaller than that of the first groove along the plate thickness direction of the base portion, and the extension portion is limited by the second groove; the conducting connection part is arranged at the bottom of the terminal and is used for electrically connecting the circuit board; and the elastic part is formed by bending and extending upwards from the extending part and is used for abutting against the chip module.
2. The electrical connector of claim 1, wherein: the accommodating hole comprises a first wall surface and a second wall surface which are oppositely arranged, the first wall surface and the second wall surface jointly define the first groove, and the second groove penetrates through the first wall surface and is communicated with the first groove.
3. The electrical connector of claim 2, wherein: the first wall surface and the second wall surface are arranged obliquely to each other.
4. The electrical connector of claim 1, wherein: the inner wall of the containing hole is provided with two oppositely arranged lugs, and the two lugs jointly define the second groove.
5. The electrical connector of claim 4, wherein: the top of each bump is provided with a guide surface which is obliquely arranged.
6. The electrical connector of claim 1, wherein: the accommodating hole is provided with a third wall surface and a fourth wall surface, a bump is formed by extending from the third wall surface to the accommodating hole, and the bump and the fourth wall surface jointly define the second groove.
7. The electrical connector of claim 6, wherein: the accommodating hole further comprises a fifth wall surface connecting the third wall surface and the fourth wall surface, and the lug is connected with the fifth wall surface.
8. The electrical connector of claim 1, wherein: the body is provided with a groove which is downwards concave from one side of the second groove, the groove is communicated with the second groove, the width of the groove is larger than that of the second groove, and the groove and the first groove are positioned at two opposite sides of the second groove.
9. The electrical connector of claim 8, wherein: the extension part is accommodated in the groove.
10. The electrical connector of claim 1, wherein: the two opposite sides of the base are provided with a plurality of clamping parts, the clamping parts are used for being in interference fit with the first grooves, the bottom end of at least one clamping part is provided with a limiting part, and the first groove is provided with a limiting surface which is positioned below the limiting part and used for limiting the terminal to move downwards.
11. The electrical connector of claim 1, wherein: the extending part is provided with a stopping part, and the second groove is provided with a stopping surface which is positioned below the stopping part and used for limiting the terminal to move downwards.
12. The electrical connector of claim 11, wherein: the base part is provided with a limiting part which is positioned below the stop part, and the first groove is provided with a limiting surface which is positioned below the limiting part and used for limiting the terminal to move downwards.
13. The electrical connector of claim 1, wherein: the extension portion pierces to form a spur, and the spur is in interference fit with the second groove.
14. The electrical connector of claim 1, wherein: the body is provided with a raised line which is raised upwards from one side of the first groove, one side of the raised line which is close to the material connecting part is provided with an inclined plane, and the top end of the material connecting part is higher than the lower end of the inclined plane but lower than the upper end of the inclined plane.
15. The electrical connector of claim 14, wherein: the body is provided with a supporting block protruding upwards from the other side of the first groove, the top surface of the supporting block is higher than that of the protruding strip, and the supporting block is used for upwards bearing the chip module.
16. The electrical connector of claim 1, wherein: the conducting part extends downwards from the bottom end of the base part and is welded with the circuit board through a welding flux.
17. The electrical connector of claim 1, wherein: the vertical center line of the guide part and the vertical center line of the base part are arranged in a deviated mode in the horizontal direction.
18. The electrical connector of claim 17, wherein: the vertical center line of the guide part is deviated from the vertical center line of the base part towards the joint of the base part and the extension part.
19. The electrical connector of claim 17, wherein: the conductive part is formed by vertically extending downwards from the bottom end of the base part, a fixing block protruding downwards is arranged on one side of each accommodating hole of the body, and the conductive part and the fixing block are clamped on two opposite sides of a welding flux.
20. The electrical connector of claim 1, wherein: the guide connection part comprises a first part, a second part and a protruding part, wherein the first part is formed by downwards extending the bottom end of the base part, the second part is formed by horizontally extending the first part, the protruding part is formed by horizontally extending the second part, the protruding part extends to the position right below the extending part, and the bottom surface of the protruding part is welded with a welding flux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/210,162 US10601163B2 (en) | 2017-12-08 | 2018-12-05 | Electrical connector |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017112921260 | 2017-12-08 | ||
| CN201711292126 | 2017-12-08 |
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| Publication Number | Publication Date |
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| CN108429035A CN108429035A (en) | 2018-08-21 |
| CN108429035B true CN108429035B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810208023.XA Active CN108429035B (en) | 2017-12-08 | 2018-03-14 | Electrical connector |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US10601163B2 (en) |
| CN (1) | CN108429035B (en) |
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| CN108429035B (en) * | 2017-12-08 | 2020-06-09 | 番禺得意精密电子工业有限公司 | Electrical connector |
| USD908633S1 (en) | 2018-10-12 | 2021-01-26 | Amphenol Corporation | Electrical connector |
| USD892058S1 (en) | 2018-10-12 | 2020-08-04 | Amphenol Corporation | Electrical connector |
| CN114128053A (en) | 2019-05-20 | 2022-03-01 | 安费诺有限公司 | High-density high-speed electric connector |
| CN112151986B (en) * | 2019-06-28 | 2024-02-20 | 富顶精密组件（深圳）有限公司 | Electric connector |
| CN110707504B (en) * | 2019-08-07 | 2021-09-21 | 番禺得意精密电子工业有限公司 | Method for manufacturing electric connector and electric connector |
| CN110943317B (en) * | 2019-12-19 | 2021-02-26 | 富士康(昆山)电脑接插件有限公司 | Electrical connector |
| CN114552251A (en) * | 2020-11-26 | 2022-05-27 | 莫列斯有限公司 | Terminal and socket connector |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20190181579A1 (en) | 2019-06-13 |
| US10601163B2 (en) | 2020-03-24 |
| CN108429035A (en) | 2018-08-21 |
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